The PG200 single scale process gauges and PG250 dual scale altitude gauges
provide high accuracy and premium materials for demanding applications such as
water tank levels and system pressures. The process gauges rugged
phenolic case are completely sealed and may be surface-mounted for panel
applications. Both the PG200 process gauges and PG250 altitude gauges are
filled with glycerin, which absorbs shock, reduces vibration effects and
lubricates the movement to assure a long trouble free service life.*

Single Scale Process Gauges
The PG200 Single Scale Process Gauge has a large, easy read single scale dial
that shows psi. These gauges are typically used in evaluating water
systems for pressure problems and obtaining system modeling data.

Dual Scale Altitude Gauges
Commonly called an "altitude gauge", the PG250's large dual scale shows both
feet of head (WC (Water Column)) and PSI. Since there is a direct
correlation between water pressure and water column (the highest level of the
water above the measuring point), altitude gauges are commonly used to
determine level readings on water tanks and towers.

*NOTE: Due to the large case volume of the process gauges some leakage of fill
material is normal as a result of temperature and pressure variations.
Glycerin is a low-reactive, non-hazardous liquid.